Nonlinear optical response of zinc oxide nanorods with gold and silver alloy embedment

Document Type

Article

Publication Date

7-15-2022

Abstract

In this work, we investigated the nonlinear optical (NLO) response using ZnO nanorods with integration of gold and silver alloys. The thin films of ZnO-nanorods-Au-Ag were chemically synthesized on glass substrate and characterized using FE-SEM, UV-Vis, and XRD, for their morphology, linear absorption, band gap, and lattice structure. NLO were analysed using Z-scan technique at 720 nm fs laser for open and closed aperture; referring to nonlinear absorption and nonlinear refractive index, respectively. The highest nonlinear absorption was observed in ZnO-Au NPs with beta = 5.60 x 10(-6) cm/W, and highest value of nonlinear refractive index was observed in ZnO-Au3Ag1 NPs with gamma = 15.28 x 10(-12) cm(2)/W. The third-order nonlinear susceptibility was observed the highest in ZnO-Au NP with chi((3)) = 14.62 x 10(-10) esu, shows great enhancement compared to ZnO NRs. NLO of a material are one of the important part of research that would provide good understanding towards optical devices and applications.

Keywords

ZnO-Nanorods, Au and Ag NPs, Femtosecond laser, Nonlinear optical properties

Publication Title

Physica B-Condensed Matter

Divisions

PHYSICS,photonics

Funders

Impact-Oriented Interdisciplinary Research Grant (IIRG) under University Malaya PPGP [IIRG005B-19IISS],Impact-Oriented Interdisciplinary Research Grant (IIRG) under University Malaya RU grant [STU48-2021]

Volume

637

Publisher

Elsevier

Publisher Location

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

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